举一反三
- ______ lines are, by definition, lines on the same plane that never join. A: Lateral B: Intersecting C: Vertical D: Parallel
- How many regions would 79 lines separate a 2-D plane? Assume that no three lines cross at the same point, i.e. lines only cross in pairs.<br/>______
- “Board the plane” means _________ A: go out of the plane B: leave the plane C: enter the plane D: run away from the plane. E: C
- Which<br/>plane that axial surfaces of folds are parallel to? ____ A: plane<br/>AB B: plane<br/>AC C: plane<br/>BC D: anyone may be possible
- People listen to music on the following three planes: (1)the _____________ plane, (2) the ___________plane, (3) the___________ _____________ plane.
内容
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For plane bending the characteristics of deformation are ( ). A: The cross section remains plane when bent; B: The axis after deformation is a plane curve; C: All external loads act on the same plane; D: The axis after deformation is in the same plane with the loading plane.
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The process of listening to music can be divided on three hypothetical planes: the sensuous plane, the expressive plane and the sheerly musical plane.
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Let's go to Paris _____________. A: by plane B: by a plane C: a plane D: by the plane
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中国大学MOOC: 直立摆放的圆柱，左右轮廓素线在左视图中的投影在哪里？Where is the projection of generating lines in the left view when the axis of a cylinder is right to the projection plane of H-projection plane？
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“Board the plane” means _________. A: go out of the plane B: leave the plane C: enter the plane D: run away